Pages 231-239, Language: EnglishLiebenberg, William H.The objective of this article is to introduce a new preparation design that utilizes external axial bevels and a resin placement technique that involves selective application of 2 resins of different viscosity to optimize marginal integrity in large Class II restorations. The rationale behind the intricate application of material and procedural manipulations involved in the delivery of these complicated restorations is discussed.